Planograph co



F. J. SCHWERK..

MECHANICAL MOVEMENT.

APPLICAHON men APR. 8. 191a.

' Patented 00t- 1 1, 1919.

Ne WN Fred 56%11/6/"2 ATTO R N EY UNITED TATES OFF CE- FRED J. 'scHwE'RK, "or s'ILvnRfcREEmi NEW YO K v novnME r.

- pe n of L t My Patented Oct. 14, 1919.

a lication filed. April s, 1918. Serial No. 227,267. j

"To all whom it may concern:

Be it known that I, FRED'J. SoHwERK, a citizen of the United States, residing at Silver Creek, in the county of Chautauqua and State of New York, have invented certain new and'useful Improvementsfin Mechanical Movements, of which the following is a specification. i Z v This invention relates 'to mechanicalmove ments, and more. particularly to a mechanism for producing recipro'catory motion. One' of the main objects of the "invention is. to provide a-n'iechanism of simpleuconstruct on and operation-by means ofivvhieh a device; may be reciprocated' uniformly,

. this reciprocation being effected. autoniati cally. A further object "is. to provide a' mechanism 1 especially adapted for, use in connection with separators and similar machines for reciprocating the brush" for cleaning the separator screensgf Another object is toprovide means wherebygytlie amplitude of the --recip''rocationz produced. may be readily adjusted so as to'suitv the particular screen or other object 'l11 connection with which the mechanism is used-r, A still further object is to provide simple and efficient means for shifting 'thea'driving 1 cated; gFurther. obj e mechanism soas to alternate reverse travel of the brush or other objects beingreciproits 'Willappear; from the detailed description. f1 7 Inthe drawings: j Figure 1 is a front view'of mechanical movement constructed in accordance with my invention, the brush which'is to' be, reciprocated and associated parts being fragmentarily: illustrated,

Fig. 2 is a section taken substantially on line 2,2 of Fig.1; I f Fig.3 is. a fragmentary detail *of the mounting forthetripping rod; 7 5 w Supporting standardsl and 2 are secured to the upper face of'a suitable base 3 which, when the mechanism is usedin connection 5 with a separator, maybe a "cross; beam of the separator. Standard 1 is" provided :at its upper end with a bearing sleeve '2, which is in axial a-linement with abearingsleeve 2" at the-upperpend of standard--21: The standards rotatably support a shaft 3 which issecured against axialmovement by means of a 0011:11 4. securedgthereonby aset screw 5. adjacent the innenend of bearingsleeve 2" of standard 2, and a collar 6 vwhich is secured onthe shaft by a set screw/Z adjacentthe inner face of bearing sleeve 2? of standard 1. By this means the shaft issupported for free rotation in either direction and s'byloosening the setscrews 5 and 'Z, the shaft may :be moved in either direction axially so as to be removed from the standards for cleaning, repairs or other purposes.

A collar 8 .is loosely mounted on shaft 3 adjacent. the standard 1 and has its ends providedwwith "oppositely directed teeth Which-provideithe oppositely directed clutch T ,elements 9 and 10. Clutch element 9 is adapted to coiiperate with a clutch element llformedatthe inner end of collar 6s0 as to operatively connect sleeve 8 tothe shaft.

Clutch ele1nent-10 is adapted. to coiiperate with a clutch element 12 formed atthe outer end of asleeve13loosely mounted'onshaft '3-a-nd carrying at'its inner end a miter gear '14. The inner-face of gear lt is counter sunktoreceivea :collar 15 secured onshaft 13', a similarcollar l6being provided at the outer-end ofsleevfe l3. Bythisj means, the

sleeve'l3 and .gear 14: aremounted so as to be freely rotatable onshaft 3,'and awheel 16 is'secured tosleeve 8 at the approximate center thereof, and'this wheelor pulley l6' may berotated by means of abelt fdriven from any! suitable" source of "power; f By shifting the sleeve 8 in proper directionrotation vmaybe imparted to shaft 3 through clutch element 11 and collar 6, or sleeve '13 and bevel gear 14, aswill be evident.-

Miter gear 14 meshes with a horizontally disposed miter gear l7 wwhich is rotatably mounted on a stub shaft 18 carried by a base member 19 mounted-on base 3; a suit able spacing 'collar 20 being interposed be: tweensbase 19' and the hub: of; gear 17 so as'to rotatably support the-gear in-proper position. Miter-gear 17 also meshes'with a miter gear 21 which is fixedly secured to shaft 3 by means of a; set screw 22, this latter gear being positioned at the diametrically opposite side of gear 17 from gear 14.

By shifting sleeve 8 so as to bring clutch opposite direction being positioned opposite gear 14 diametrically of miter gear 17. By this means, the direction of rotation of shaft 3 may be readily reversed.

Shaft 3 is provided with a threaded portion 3 which extends substantially one-half of the length of the shaft. An inter orly threaded collar 24 is mounted on this threaded portion of the shaft so as to be moved longitudinally thereof when the shaft is rotated. This collar is provided with an upwardly directed arm 25 which pro ects to one side of the shaft 3. This arm has a central slot 26 which receives a tripping rod 27, the inner end of which is loosely secured to a tripping lever 28 pivotally mounted adj acent its lower end, by means of pivot bolt 29, on a standard 30 secured to base 3'. This tripping rod is slidable through a sup porting ring 31 which is rockably mounted for movement about a horizontal axis in the upper end of an arcuate arm 32 secured to the outer end of bearing sleeve 2 and disposed in alinement with the arm 25 of sleeve 24. The tripping rod is provided with tripping collars 33 adjustably secured thereon by means of set screws 34.

These collars are adapted to be engaged by the arcuate arm 25 of the main tripping collar 24 so as to move the rod 27 longitudinally thus rocking the tripping lever 28 about its axis in either direction depending upon the direction of travel of arm 25. In this manner, the tripping lever may be rocked in either direction so as to bring the weight member 35 which is adjustably secured thereon, by means of a bolt 36 passed through the center of the weight and inserted into any one of the vertical series of apertures 37 provided in the lever for this purpose, beyond the vertical plane of the axis of the bolt 29, thus causing the weight to rock the lever so as to cause operation of the shifting mechanism.

Lever 28 is provided, at its lower end, with a laterally projecting pin 38 which extends through a longitudinal slot 39 formed in the inner end portion of a connecting link 40. Slot 39 is cut away at the center ofits upper side to produce a contiguous recess 41 which receives the pin 38 when lever 28 is in a substantially vertical or neutral position, this recess providing slight shoulders or abutments adjacent each side of the pin 38 which serve to slightly retard movement of the pin. 7 The outer end of link 40 is pivotally secured, as at 42, to the shank 43 of a shifting fork 44 of usual construction provided atthe upper ends of its arms with antifriction rollers fitting into an annular recess or groove 45 provided in sleeve 8. The shank 43 of the fork is pivotally secured by means of a pivot bolt 46, to a standard '47 mounted on the base 3, bolt 46 beingpositioned a slightdistance above the pivot bolt 42 which connects the outer end of link 40 to the lower end of the shank. In this manner, when lever 28 is rocked, the sleeve 8 will be shifted in proper direction so as to operatively connect the drive pulley 16' to the shaft 3 so as to cause proper rotation thereof.

In using this mechanism, the brush or other element to be reciprocated may be connected directly to the collar 24 so as to move therewith if desired, or may be connected to the shaft 3 s0 as to be operated thereby. When the movement is used in connection with a separator or similar machine, I prefer to employ this type of con nection, though it will be evident that the article to be reciprocated may be connected to the apparatus in any manner desired.

A sprocket wheel 46 is secured on shaft 3 adj acentstandard 2.. This sprocket wheel is connected by a sprocket chain 47 to a sprocket wheel 48 secured on a screw shaft 49 which maybe rotatably supported adjacent the underneath of the screen or element to be cleaned. A brush carriage 50 is interiorly threaded to receive the shaft 49 and carries the brush 51. A suitable guide strip 52 may be. provided for engagement with carriage 50 as to prevent rotary movement thereof with the shaft 49. Y The pitch of the threads of shaft 49 may be either greater or less than, or the same as, the pitch of the threads of shaft 3, as desired. When the main shaft 3 is rotated, this rotation will be imparted to screw shaft 49 so as to cause movement of thebrush carriage 50 longitudinally of the same in one direction. When the direction of rotation of shaft 3 is reversed, the carriage 50 will be caused to movelongitudinally of shaft 49 in the opposite direction. -This reversal of the direction of rotation of the main shaft 3 is" effected by engagement of the tripping V W hen arm 25 en a 'es the inner collar 33 tripping rod 27 will bemoved longitudinally toward the drive pulley 16. This results in swinging the lever 28 about itsaxis toward the guide pulley. When the lever has been moved into substantially vertical position, pin 38 engages. into the recess 41 of link 40 and is frictionally held therein. As the pressure on lever 28 increases, the pin 38 is forced out of recess 41 andlever 28 is moved so as'to bringthe center'of weight 35 beyond the vertical plane of the axis of bolt 29. The weight then acts to swing the lever in such direction as'to bring'the pin 38 into comparatively violent contact with the link 40 at the innerend'of the slot 39. This results in moving the link 40 inward which causes-the fork 44 to be rocked outward so as to shift sleeve 8 toward standard 1 and bring the clutch elements 6 and 11 into operative engagement. Inthis manner, the shaft is connected directly to the guide pulley 16' so as v to rotate therewith, th'e direction of rotation of the shaft being thus reversed so as to reverse the direction of travel of the collar 24. When the collar reaches its extreme position in the other direction, arm 25 engages tripping collar 33 at the other side of the arm so as to rock lever 28 and return it to its original position thus again reversing the direction of rotation of the shaft. In this manner, the direc- I tion of rotation of shaft 3 is automatically reversed at predetermined times, and this causes the reversal of the direction of rotation of screw shaft 49 thus reciprocating brush carriage 50 and the brush 51 carried thereby. As the shifting or trip collars 33 may be readily adjustedlongitudinally of the tripping rod 27, the distance apart of these collars maybe readily varied to suit the distance of travel of the carriage 50. Of course as previously stated, if desired, the brush or other member which it is desired to reciprocate may be connected directly to the carriage or collar 24 so as to be moved directly thereby, thus doing away with the supplemental shaft 49 and associated parts. This shaft 49 and the members associated therewith have been illustrated merely as showing one way of using the mechanism,

but it is to be understood that I d5 not intend to in any way limit myself to this one particular use as this mechanism may be utilized to cause either direct or indirect reciprocation of any article to which it is desired to impart such motion.

To prevent unnecessary strain being placed upon the link 40 and the shifting fork, I provide stop collars 53 at each side of arm 32, these collars being adjustably secured to tripping rod 27 by set screws 54. The collars 53 are so adjusted as to engage arm 32 when lever 28 has been rocked into its extreme position in either direction and the shifting operation has been completed. In this manner, the weight of lever 28 and the shift weight 35 carried thereby is supported by the stop collar 53 which is in engagement with arm 32 thus relieving the link 40 and shifting fork of the strain incident to supporting this weight.

The foregoing description and the draw ings have reference to what may be consideredthe preferred, or approved, form of invention. It is to be understood that I may make such changes in construction. and arrangeine'nt and combination of parts, mate rials, dimensions, etc., as may prove eX- ;p'edient and fall within the scope of the appended claims."

- Having'thus fully described my invention,

said shaft and engageable by one of the clutch elements carried by the drive pulley soas to impart rotation to the shaft directly from said pulley, gearing connected to said shaft'for causing rotation thereof in a direction reverse to'the direction of rotation of thedrive pulley, said gearing being provided with a clutch element engageable by the other clutch element carried by the pulley, shifting means for moving thepulley in such direction as to operatively connect the same directly to the shaft or to the reversing gearing, and means controlled by the collar operable on the shaft for operating said shifting means so as to reverse the direction of rotation of the shaft when the collar has been moved a predetermined distance longitudinally thereof in either direction. V l

2. In a mechanical movement, a rotatable shaft threaded for a portion of its length, a collar mounted on the threaded portion of said shaft so as to be moved longitudinally thereof when the shaft is rotated, a pulley loosely mounted on said shaft for independent rotation and provided at its opposite sides with clutch elements, a clutch element secured to the shaft and adapted to be engaged by one of the clutch elements carried by the pulley so as to directly connect the pulley to the shaft to cause rotation thereof in the direction of rotation of the pulley when said pulley is rotated, reversing gearing connected to the shaft so as to cause rotation thereofin the reverse direction to arockably mounted reversing lever, a slidably mounted tripping rod loosely secured to said lever so as to rock the samewhen' and connections between the fork and the 10 the rod is moved longitudinally, an arm tripping lever for operating said fork when .carried by the collar and extending about the lever is rocked.

said tripping rod, tripping collars secured In testimony whereof I affix my signature on the rod at each s1de of said arm and 1n presence of two witnesses.

engageable thereby so as to cause longitudi- FRED .T. SCHWERK. n al movement of the rod when the collar has Witnesses:

been moved a predetermined distance in A. L. BROWN,

either direction longitudinally of the shaft, L. L. DAILEY.

Copies ofthis patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. 0. 

